Magnetically actuated metering valve

Details Magnetically actuated metering valve Magnetically actuated metering valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/14

F16K 31/02 (2006.01) F16K 31/08 (2006.01)

Patent

CA 1115257

ABSTRACT OF THE DISCLOSURE This invention relates to a shifting stem metering valve that is magnetically actuated. A driven magnet assembly is rotatably support in a nonmagnetic pressurizable bonnet fixed to the main valve body. The driven magnet assembly preferably comprises rare earth cobalt magnets defining an even number of north and south poles. A cylindrical bolder coaxial with and surrounding said tubularbonnet is rotatably secured thereto. The holder carries driving magnets, preferably rare earth cobalt magnets with an even number of north and south poles. Rotation of the holder results in rotation of the driven magnet assembly. A stepping motor or the like controls the rotation of the driven magnet assembly. A valve stem is connected to the driven magnet assembly in a manner such that turning of the driven magnet assembly shifts the stem which in turn adjusts the valve opening.

346908

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